New answers tagged mfcc
0
It just lift the high frequency part coefficients
we can refer the HTK book, equ 5.12
We can plot the 12 coeffs while using these condition:
N=13; %N is the number of cepstral coefficients
L=22; % L is the liftering parameter
ceplifter = ( 1+0.5*L*sin(pi*[0:N-1]/L) );
plot(ceplifter);
xlabel('number of cepstral coefficients');
ylabel('ceplifter');
...
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